[SOLVED] All these parts combined will they work

Solution
If I were to rebalance the system within your budget, I'd go with:
PCPartPicker Part List

CPU: AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor (£253.47 @ Amazon UK)
Motherboard: Asus TUF GAMING B550M-PLUS Micro ATX AM4 Motherboard (£166.36 @ Amazon UK)
Memory: Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory (£156.97 @ Amazon UK)
Storage: ADATA XPG SX8200 Pro 1 TB M.2-2280 NVME Solid State Drive (£129.99 @ CCL Computers)
Storage: Western Digital Blue 2 TB 3.5" 5400RPM Internal Hard Drive (£53.99 @ Amazon UK)
Video Card: Gigabyte GeForce RTX 2070 SUPER 8 GB WINDFORCE OC 3X Video Card (£477.24 @ CCL Computers)
Case:...
My concern is more on quality than wattage. Power supplies are horribly overpriced right now because of COVID supply shortages. But even on a good day, a £1,400 system shouldn't be powered by a £50 PSU (and the one you've selected would normally cost about £30)
 
If I were to rebalance the system within your budget, I'd go with:
PCPartPicker Part List

CPU: AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor (£253.47 @ Amazon UK)
Motherboard: Asus TUF GAMING B550M-PLUS Micro ATX AM4 Motherboard (£166.36 @ Amazon UK)
Memory: Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory (£156.97 @ Amazon UK)
Storage: ADATA XPG SX8200 Pro 1 TB M.2-2280 NVME Solid State Drive (£129.99 @ CCL Computers)
Storage: Western Digital Blue 2 TB 3.5" 5400RPM Internal Hard Drive (£53.99 @ Amazon UK)
Video Card: Gigabyte GeForce RTX 2070 SUPER 8 GB WINDFORCE OC 3X Video Card (£477.24 @ CCL Computers)
Case: Corsair SPEC-DELTA RGB ATX Mid Tower Case (£64.99 @ Box Limited)
Power Supply: Corsair TXM Gold 650 W 80+ Gold Certified Semi-modular ATX Power Supply (£79.98 @ Currys PC World Business)
Total: £1382.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-06-24 17:17 BST+0100


Of course, I don't know what you're using the machine for that requires a Ryzen 3900X, so....
 
Solution